Health Highlights: Aug. 15, 2016

Here are some of the latest health and medical news developments, compiled by the editors of HealthDay:

Two Polio Cases in Nigeria: CDC

Two children have been diagnosed with polio in Nigeria, breaking a two-year stretch where there were no reported cases of the disease in that country, the U.S. Centers for Disease Control and Prevention says.

The two cases were detected in the state of Borno by the Nigerian polio surveillance system.

"Confirmation of wild poliovirus in Nigeria is a disappointing setback but doesn't change our determination to end polio, or the fact that the world has continued to make progress toward polio eradication," according to a CDC news release.

"This is not the first time that polio eradication efforts have experienced a setback. It is a reminder that we must redouble efforts to strengthen surveillance and immunization activities," the agency said.